diff --git a/rpm/python3-idna.spec b/rpm/python3-idna.spec
index d75eff4..fae643a 100644
--- a/rpm/python3-idna.spec
+++ b/rpm/python3-idna.spec
@@ -7,6 +7,7 @@ URL:        https://pypi.org/project/idna/
 BuildArch:  noarch
 Source0:    %{name}-%{version}.tar.bz2
 Requires:   python3-base
+BuildRequires:  python3-devel
 BuildRequires:  python3-setuptools
 
 %description